“It really is true that you become an average of the people you spend the most time with”

Simplified Meaning:

The people you spend the most time with have a big impact on who you are. Just like how you might start to pick up your friends' habits or ways of talking, your close group influences your behaviors, thoughts, and attitudes. For example, if you hang out with hardworking and motivated friends, you're more likely to work hard and be motivated yourself. Imagine being on a sports team where everyone practices hard; you'll likely practice hard too. On the other hand, if your friends are often negative or lazy, you might find yourself feeling the same way. To use this idea in your life, choose to be around people who have qualities you admire or want to develop in yourself, like kindness, ambition, or positivity. This way, their good traits will rub off on you, helping you to grow and improve.